Manuals / Perle Systems / Computer Equipment / Network Router

Perle Systems SDS, MDC Keepalive, Lock, Microsoft-sac-support, Motd, Multisessions, Nouser, Reset

Models: SDS MDC

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Line Commands

keepalive

Enables a per-connection TCP keepalive feature. After the configured number of seconds, the connection will send a gratuitous ACK to the network peer, thus either ensuring the connection stays active OR causing a dropped connection condition to be recognized.

This parameter needs to be used in conjunction with server parameter, monitor-connection-every. The interval determines how long the IOLAN will wait during inactivity before "testing" the connection. It should be noted that if a network connection is accidentally dropped, it can take as long as the specified interval before anyone can reconnect to the serial port.

lock

When enabled, the user can lock his terminal with a password using the Hotkey Prefix (default Ctrl-a) ^a l (lowercase L). The IOLAN prompts the user for a password and a confirmation.

microsoft-sac-support

When enabled, the user can lock his terminal with a password using the Hotkey Prefix (default Ctrl-a) ^a l (lowercase L). The IOLAN prompts the user for a password and a confirmation.

motd

Enables/disables the message of the day on the line.

multisessions

This parameter defines the maximum number of additional reverse sessions which will be allowed for this line allowing more control as to how the total reverse sessions are allocated. This is on top of the main reverse session to the line.

The total number of reverse sessions on the IOLAN are dependent on the model:

z1-port: 0-3

z2-port:(4 x #-of-ports)-1

zSTS/SDS/MDC 4+ ports: (2 x #-of-ports)-1

zSCS 4+ ports: (2 x (#-of-ports+ 1)) -1

user

For DSLogin line service, makes this a line that is dedicated to the specified user. Only this user will be able to log in on this line and they won’t need to enter their login name

-just their password. When the Line Service is set to Direct or Silent Rlogin, the User parameter is used as the Rlogin user name (since Rlogin will not prompt you for a user name).

nouser

Blanks out the User parameter, in case you want to change a dedicated user line to an undedicated line.

reset

Resets the terminal type connected to the line when a user logs out.

dial-timeout

The number of seconds the IOLAN will wait to establish a connection to a remote modem. The default value is 45 seconds.

dial-retries

The number of times the IOLAN will attempt to re-establish a connection with a remote modem. The default value is 2.

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IOLAN SDS/SCS/STS/MDC CLI Reference Guide, Version 3.7

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Perle Systems SDS Keepalive, Lock, Microsoft-sac-support, Motd, Multisessions, Nouser, Reset, Dial-timeout, Dial-retries
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SDS, MDC specifications

Perle Systems is a leading provider of connectivity solutions, renowned for its robustness and reliability in networking hardware. Among its expansive product offerings, the MDC (Multiport Device Converter) and SDS (Serial Device Server) stand out as pivotal solutions for industries requiring seamless data communication and device management.

The Perle MDC serves as a powerful multi-port device converter, providing the ability to connect multiple serial devices to a computer network without needing a separate connection for each device. This is particularly useful in environments with limited computing resources or high device density, such as railways, manufacturing plants, or remote field operations. It is designed to convert serial communication, which is commonly used in legacy devices, into Ethernet/IP or TCP/IP protocols, ensuring that older devices can integrate into modern networks.

Main features of the MDC include its robust design for industrial environments, support for a variety of serial protocols, and multiple device connections. It supports data rates of up to 115200 bps and provides easy monitoring and configuration via a web-based interface. Additionally, the MDC incorporates advanced security features including SSL and SSH encryption, ensuring data integrity and protection against unauthorized access.

On the other hand, the Perle SDS model exemplifies advanced serial device hosting capabilities, allowing users to connect Ethernet networks to serial devices. It acts as a bridge, enabling remote devices to be configured and managed over IP networks. The SDS series is known for its versatility, supporting a range of serial communication protocols, including RS-232, RS-422, and RS-485, making it suitable for various applications such as point-of-sale systems, industrial automation, and remote monitoring.

The SDS boasts several characteristics that enhance its functionality, such as automatic device discovery, real-time monitoring, and local or cloud-based management options. Its feature set also includes traffic management capabilities, allowing the optimization of device communication by controlling the flow of data, which is critical for applications requiring high reliability and low latency.

Both the MDC and SDS benefit from a strong emphasis on ease of deployment and management. They support a range of network topologies, facilitating seamless integration into existing infrastructures. Furthermore, these devices are backed by Perle Systems' reputation for customer support and a commitment to ongoing innovation, ensuring that organizations can rely on these solutions for future growth and technological advancement.